Food processor base capable of dissipating heat safely

Abstract

The food processor base comprises a machine shell, a driving motor and an electric control element, the driving motor and the electric control element are arranged in an inner cavity of the machine shell, an installation position for containing a food processing cup is formed at the top of the machine shell, and a driving shaft of the driving motor penetrates out of the installation position to be in transmission connection with a smashing cutter in the food processing cup. A cooling fan coaxially rotating with the driving shaft is arranged below the driving motor, the driving motor, the electric control element and the cooling fan are jointly arranged in the inner cavity of the machine shell and located in the same space, and air in the cooling fan flapping space flows through the driving motor and the electric control element to take away heat. Heat is radiated outwards from the wall face of the machine shell along with the airflow contact with the wall face of the machine shell, the ventilation opening is formed to discharge the heat or introduce external cold air, and therefore heat dissipation is achieved, a heat dissipation structure with inlet and outlet air convection and an air inlet formed in the bottom is replaced, and potential safety hazards caused by the fact that an air suction opening in the bottom continuously sucks air to suck accumulated water on a table top into a machine base are avoided. The machine base does not need to be provided with a complex waterproof structure and the overall height of the food processor is prevented from being too high.

Description

Technical Field

[0001] The utility model relates to the field of cooking machines, in particular to a cooking machine base with safe heat dissipation. Background Art

[0002] A cooking machine is a common household appliance used to assist cooking in the kitchen. It includes a base and a cooking cup. The cooking cup is installed on the base, and a stirring knife is arranged in the cooking cup and is in transmission connection with a driving motor in the base through a transmission knife seat, and drives the ingredients in the cooking cup to be stirred and crushed under the drive of the driving motor. When the driving motor and the electronic control components in the base are working, heat energy is generated due to work done, and the high temperature generated by the accumulation of heat energy will damage the electronic components. Therefore, it is necessary to dissipate heat from the driving motor and the electronic control components.

[0003] In the prior art, a heat dissipation structure in the form of air inlet and outlet convection is usually arranged in the base to dissipate heat from the driving motor and the electronic control components. That is, an air inlet is set to inhale cold air, and an air outlet is set to discharge hot air. A convective heat dissipation air duct is formed between the air inlet and the air outlet to dissipate heat from the driving motor and the electronic control components. And in order to strengthen the convection effect, air guide covers are respectively arranged on the driving motor and the electronic control components. The air inlet on the base is generally arranged at the bottom, but the cooking machine generally works in a kitchen environment, and it is difficult to avoid the existence of accumulated water on the table. And the air inlet of the base continuously inhales air for heat dissipation, there is a risk of inhaling the accumulated water on the table into the base, posing a safety threat to the internal electrical components. Therefore, in the prior art, the base of the cooking machine will arrange a waterproof structure for the problem of the air inlet sucking accumulated water or raise the height of the bottom of the base, resulting in a complex structure or an excessive overall height of the cooking machine. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a cooking machine base with safe heat dissipation.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A cooking machine base with safe heat dissipation includes a machine shell and a driving motor and electronic control components placed in the inner cavity of the machine shell. An installation position for placing the cooking cup is formed at the top of the machine shell. The driving shaft of the driving motor penetrates out to the installation position and is in transmission connection with the crushing knife in the cooking cup. A heat dissipation fan coaxial with the driving shaft is arranged below the driving motor. The driving motor, the electronic control components and the heat dissipation fan are jointly arranged in the inner cavity of the machine shell in the same space. An air vent communicating with the inner cavity of the machine shell is arranged on the wall of the machine shell, so that the space where the driving motor, the electronic control components and the heat dissipation fan are located communicates with the outside atmosphere.

[0007] The air vent is arranged at the bottom of the machine shell below the heat dissipation fan, and the axis of the driving shaft passes through the air vent.

[0008] The cooling fan is a centrifugal fan.

[0009] The cooling fan is an axial-flow fan.

[0010] An air vent II is provided at the top of the housing. The axial-flow fan blows air downward. At this time, the air vent is the air outlet, and the air vent II is the air inlet.

[0011] The beneficial effects of the present utility model are as follows: In order to solve the problem that the continuous suction of air at the bottom air inlet sucks the tabletop water into the machine base, which causes potential safety hazards, the present utility model replaces the conventional heat dissipation structure with simultaneous air inlet and outlet and the air inlet at the bottom. By arranging the drive motor, the electronic control components, and the cooling fan in the same space in the inner cavity of the housing, the cooling fan is used to fan the air flow in the space to flow through the drive motor and the electronic control components to take away the heat. The heat follows the air flow to contact the housing wall surface, and the heat is radiated outward from the housing wall surface. An air vent is provided to discharge the heat or introduce cold air from the outside, thereby realizing heat dissipation. There is no continuous suction air inlet at the bottom of the machine base, so that the machine base does not need to be provided with a complex waterproof structure and the overall height of the cooking machine can be prevented from being too high. Description of the Drawings

[0012] The present utility model will be further described below with reference to the drawings and embodiments.

[0013] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0014] Figure 2 is Figure 1 a schematic diagram of the air flow in the air cavity in the embodiment;

[0015] Figure 3 is a schematic structural diagram of another embodiment of the present utility model;

[0016] Figure 4 is Figure 3 a schematic diagram of the air flow in the air cavity in the embodiment. Detailed Embodiments

[0017] Referring to Figures 1 to 4 a cooking machine base with safe heat dissipation, which includes a housing 1, a drive motor 2 and electronic control components placed in the inner cavity of the housing 1. The electronic control components include a circuit board 51, a safety switch 52, a transformer, etc. An installation position 11 for placing a cooking cup is formed at the top of the housing 1. The drive shaft 22 of the drive motor 2 penetrates through to the installation position 11 and is in transmission connection with the crushing knife in the cooking cup. A cooling fan 3 coaxial with the drive shaft 22 is provided below the drive motor 2, and the cooling fan 3 is used to fan the drive motor 2 for heat dissipation.

[0018] The drive motor 2, the electronic control components and the cooling fan 3 are arranged together in the same space in the inner cavity 14 of the casing. The cooling fan 3 fans the air in the space to form a cooling airflow. The airflow flows through the drive motor 2 and the electronic control components and takes away the heat. The heat follows the airflow and contacts the wall of the casing 1, and the heat is radiated outward from the wall of the casing 1. A vent 12 is also provided on the wall of the casing 1 to connect the space where the drive motor 2, the electronic control components and the cooling fan 3 are located with the outside atmosphere, to balance the air pressure in the space that changes due to temperature rise and fall, and to discharge the heat or introduce the external cold air during the process of air pressure balance, so that the cooling airflow can be cooled again, thereby achieving heat dissipation.

[0019] Preferably, the vent 12 is arranged at the bottom of the casing 1 below the cooling fan 3 , and the axis of the drive shaft 22 passes through the vent 12 . Most preferably, the center of the vent 12 faces the center of the drive motor 2 and the cooling fan 3 .

[0020] According to the different types of cooling fans 3 selected in the present invention, the cooling airflow flow mode in the inner cavity 14 of the casing is slightly different, for example:

[0021] like Figure 2 As shown, when the cooling fan 3 is a centrifugal fan 31, the centrifugal fan 31 has peripheral air outlet, and the peripheral air outlet generates high wind pressure and high wind speed, which can make the cooling airflow flow faster in the casing cavity 14 to take away the heat of the electronic control components.

[0022] like Figure 4 As shown in the figure, when the cooling fan 3 is an axial flow fan 32, the axial flow fan 32 sucks air on one side and discharges air on the other side. Since the axial flow fan 32 is arranged below the driving motor 2 and coaxially arranged with the driving shaft 22, the air flow fanned by the fan 3 can only blow upward or downward. In this embodiment, the axial flow fan 32 is arranged downward and the driving motor 2 and most of the electronic control components are located in the space above the axial flow fan 32. Therefore, an axial flow fan 32 that blows air downward is selected, and the vent 12 is arranged at the bottom of the casing 1 at the wind direction. Below the fan 3, the vent 12 serves as an air outlet, and the negative pressure airflow generated on the suction side of the axial flow fan 32 serves as a heat dissipation airflow to carry away the heat generated by the drive motor 2 and the electronic control components, and is drawn into the axial flow fan 32, and is blown out of the vent 12 from the air outlet side. In addition, in order to enable the suction side of the axial flow fan 32 to absorb heat more smoothly through the negative pressure airflow, a vent II 13 is provided on the top of the casing 1. The vent II 13 is also connected to the casing inner cavity 14, and serves as an air inlet to provide more cold airflow for the casing inner cavity 14.

[0023] In order to solve the problem that the continuous suction of air through the bottom air inlet sucks the accumulated water on the tabletop into the machine base, which poses a safety hazard, the utility model replaces the conventional heat dissipation structure with simultaneous air inlet and outlet and the air inlet located at the bottom. The heat dissipation structure adopted by the utility model has no continuous suction air inlet at the bottom of the machine base 1, and the machine base 1 does not need to be provided with a complex waterproof structure and avoid the overall height of the cooking machine being too high.

Claims

1. A food processor base with safe heat dissipation, comprising a housing (1) and a drive motor (2) and an electric control element disposed in an inner cavity of the housing, wherein a mounting position (11) for placing a food processor is formed on the top of the housing (1), a drive shaft (22) of the drive motor (2) passes through the mounting position (11) and is transmission-connected to a crushing blade in the food processor, a heat dissipation fan (3) is disposed below the drive motor (2) and rotates coaxially with the drive shaft (22), and the characteristics are as follows: The drive motor (2), the electric control element and the cooling fan (3) are arranged together in the same space in the inner cavity (14) of the casing, and a vent (12) connected to the inner cavity (14) of the casing is provided on the wall surface of the casing (1), so that the space where the drive motor (2), the electric control element and the cooling fan (3) are located is connected to the outside atmosphere.

2. The food processor base according to claim 1, characterized in that: The vent (12) is arranged at the bottom of the housing (1) and below the cooling fan (3), and the axis of the drive shaft (22) passes through the vent (12).

3. The food processor base according to claim 1 or 2, characterized in that: The heat dissipation fan (3) is a centrifugal fan (31).

4. The food processor base according to claim 2, characterized in that: The heat dissipation fan (3) is an axial flow fan (32).

5. The food processor base according to claim 4, characterized in that: The top of the housing (1) is provided with an air vent II (13), and the axial flow fan (32) fans the air flow to blow air downwards. At this time, the air vent (12) is an air outlet, and the air vent II (13) is an air inlet.

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